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Plate Tectonics
Volcano
Earthquakes
Crust
Rocks & Minerals
100
A section of the lithosphere that slowly moves over the asthenosphere,carrying pieces of continental & oceanic crust.
What are Plates?
100
What is a weak spot in the crust where magma has come to the surface.
Volcano
100
The Shaking that results from the movement of rock beneath Earth's surface.
Earthquake
100
Continental Crust
What is the crust that forms the continents which consists mostly of granite (rock that is lighter in color & has a coarse texture)
100
Geode
What is a rounded,hollow rock that is often lined with mineral crystals.
200
Fault
What is a break in Earth's crust where masses of rock slip past each other ?
200
Island Arc
What is a string of islands formed by the volcano's along a deep-ocean trench ?
200
Focus
What is the point beneath Earth's surface where rock breaks under stress and causes an earthquake ?
200
The crust beneath the ocean which consist mostly of basalt? (dark rock with a fine texture)
Oceanic Crust
200
The process that presses sediment together.
What is compaction?
300
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle.
What is subduction?
300
A bowl-shaped area that forms around a volcano's central opening.
What is a crater ?
300
The point on Earth's surface where rock breaks under stress and causes an earthquake.
What is a Epicenter?
300
Crust
What is the layer of rock that forms Earth's outer surface?
300
Deposition
What is the process by which sediment settles out of the water or wind carrying it?
400
A place where two plates slip past each other, moving in opposite directions.
What are Transformed Boundaries ?
400
The Ring of Fire
What is many volcanoes that rim the Pacific Ocean ?
400
The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion.
What is Primary waves ?
400
A layer of molten iron and nickel that surrounds the inner core of the Earth.
Outer Core
400
When minerals that are dissolved in a solution crystallize
What is a Chemical Rock
500
A theory that the movement of Earth's plates caused by Convection currents in the mantle
What is Convection Currents ?
500
A volcano forms above a hot spot when magma erupts through the crust and reaches the surface.
What is a Hot spot ?
500
An instrument that records and measures seismic waves.
What is a Seismograph ?
500
The outer core
What is a dense sphere of solid iron and nickel at the center of Earth.
500
Clastic rock
What is a sedimentary rock that forms when rock fragments are squeezed together